Question 248852
******EDITED TO ADD THE FOLLOWING:******<br>

******As tutor Alan3354 pointed out, 2 is a prime number, so the following deductive reasoning works for all prime numbers except 2.  It was not a complete proof, just an idea of the difference between inductive and deductive reasoning.  I will edit the statement/answer below.******<br>  

To quickly follow up on this,<br>

We can use deductive reasoning in the following manner (this is NOT a complete proof, just an example of deductive reasoning).<br>  

As the other tutor stanbon said in the original answer, inductive reasoning is based on examples, deductive reasoning is based on the general case!<br>

Let x be any prime number EXCEPT 2 (which by definition will be odd, since it can not have 2 as a divisor).<br>

Let y be any prime number EXCEPT 2 (which can equal x, which will also be odd by definition).<br>

Since the sum of 2 odd numbers will always be even (using properties of integers), the sum of 2 prime numbers will also then be even.<br>

x + y = an even number<br>

The sum of any 2 prime numbers will always be even, unless ONLY ONE of those prime numbers is 2.  Of course if both of those prime numbers are 2, then you again have a sum that is an even number.  :)<br>